How Swimming Pools Work

Think a swimming pool is just a big hole in the ground? Think again -- there's a whole lot of technology and chemistry that goes into building and maintaining a pool. They come in all shapes and sizes, but nearly all of them, from the backyard personal pool to the water park wave pool, work in the same basic way.

In this article, we'll find out how pools are built, and we'll take a look at… » Full Story on HowStuffWorks